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drm/i915: overlay: nuke readback to flush wc caches

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I retested this and whatever this papered over, the problem doesn't seem
to exist anymore.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Eric Anholt <eric@anholt.net>
[anholt: fixed up compile warning]
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Daniel Vetter 2010-02-11 14:14:42 +01:00 committed by Eric Anholt
parent 4a9bef37e5
commit 4667a4a52f
1 changed files with 0 additions and 5 deletions
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5
drivers/gpu/drm/i915/intel_overlay.c
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@ -199,16 +199,11 @@ static struct overlay_registers *intel_overlay_map_regs_atomic(struct intel_over
static void intel_overlay_unmap_regs_atomic(struct intel_overlay *overlay)
{
struct drm_device *dev = overlay->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
if (OVERLAY_NONPHYSICAL(overlay->dev))
io_mapping_unmap_atomic(overlay->virt_addr);
overlay->virt_addr = NULL;
I915_READ(OVADD); /* flush wc cashes */
return;
}